Johnson Controls FEC26 Field Equipment Controllers

Application

The FEC26 controllers are partofthe Metasys® system

Field Equipment Controller (FEC) family. These

controllers run pre-engineered and user-programmed

applications and provide the inputs and outputs required

to monitor and control a wide variety of HVAC and other

facility equipment.

The FEC controllers operate on an RS-485 BACnet®

MS/TP Bus as BACnet Application Specific Controllers

(B-ASCs) and integrate into Johnson Controls® and

third-party BACnet systems.

The FEC26 controller is available with or without an

integral LCD and push button user interface.

Switchable Communications Protocols

The Metasys® system FEC Family Controllers and

network sensors communicate using either the standard

BACnetprotocol, based ontheANSI/ASHRAE135-2004.

or the BACnet/IP protocol. The BACnet protocol is a

standard for ANSI, ASHRAE, and the International

Standards Organization (ISO) for building controls.

MostFEC,VMA16.VMA18.andIOMfieldcontrollersare

BTL-listed as BACnet Application Specific Controllers

(B-ASCs). FAC field controllers and the VMA1930 Field

Controller are BTL-listed as BACnet Advanced Application

Controllers (B-AACs).

Release 10.3 and Release Module (RM) 10.2 of the

Controller Configuration Tool (CCT) can be used to switch

the Field Bus communications protocol in supported FEC,

FAC and VMAcontrollers to be either the standard

BACnetMSTPortheN2protocol.Allnewcontrollersuse

BACnet MSTP as the default communications protocol.

Switchable communications protocols in the MSTP

models provide a cost-effective upgrade and

modernization path for customers with existing N2

controllers.

The N2-capable FEC Family Controllers can be used as

functional replacements for legacy N2 controllers. The

N2-capable FEC Family Controllers:

• havethe input and output (I/O) quantities and

characteristics of the FEC Family Controllers

• mustbeprogrammed with CCT, which has similar,

but not identical programming capabilities as

HVACPro, GX9100. GPL, and other legacy tools

• support SA Bus devices

• areavailableinBuyAmericanversions(mostmodels)

• arelisted for UL864 UUKL/UUKLC (some models).

N2is supported as part of the Metasys® 10th Edition

listing for Smoke Control System Equipment.

The N2-capable FEC family controllers:

• donotsupport Zone Bus (for example, TMZ sensors

and M100actuators) or XT-Bus (System 91) devices

(for example, XT, XTM, and XP modules)

• donotsupport a wireless connection to the N2 bus

• donotsupport NxE passthrough